RXM-900-HP-II Linx Technologies Inc, RXM-900-HP-II Datasheet - Page 8

• Manufacturer Part Number: RXM-900-HP-II
• Description: RECEIVER RF 900MHZ 8-CH PACK
• Manufacturer: Linx Technologies Inc

Specifications of RXM-900-HP-II

• Frequency: 902MHz ~ 928MHz
• Sensitivity: -95dBm
• Data Rate - Maximum: 50 kbps
• Modulation Or Protocol: FM, FSK
• Applications: Home / Industrial Automation, Remote Access, Security Alarms
• Current - Receiving: 18mA
• Data Interface: PCB, Through Hole
• Antenna Connector: Through Hole
• Voltage - Supply: 2.7 V ~ 16 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 18-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Memory Size: -
• Other names: RXM-900-HP2; RXM-900-HP2

MICROSTRIP DETAILS
Figure 12: Microstrip formulas (E
The HP-II receiver should, as much as reasonably possible, be isolated from all
other components on your PCB. Specifically, high-frequency circuitry such as
crystal oscillators should be kept as far away as possible from the HP-II receiver.
If the receiver is to be mounted parallel to the board, it should be laid over so that
the side with the crystal is closest to the PC board and the RF side is facing away
from the PC board.
The trace from the receiver to the antenna should be kept as short as possible.
A simple trace is suitable for runs up to 1/4 inch for antennas with wide bandwidth
characteristics. For longer runs or to avoid detuning a high-Q narrow bandwidth
antenna such as a helical, use a 50-ohm coax or 50-ohm microstrip transmission
line as shown below.
r
= Dielectric constant of PCB material)